Answer:
x=-7
Step-by-step explanation:
The sum of the angles of a triangle are 180 degrees
40 + x+57 + 90 =180
Combine like terms
187 +x = 180
Subtract 187 from each side
187-187 +x = 180-187
x = -7
Answer: y = 6cm
Step-by-step explanation: Pranking, or playing a practical joke on someone, is a time honored tradition among friends, enemies, and professionals alike.[1] And king among prank-worthy days: April Fools' Day.[2] This is the perfect time for put your pranking skills to the test, though depending on your personality, you might enjoy pranking any ol' day of the week. No worry if you don't have a favorite prank to play on your friends, all you need is a straight face, some effort, and a dash of creativity, and you'll soon be watching your target stumble unwittingly into your prank.
Answer:
ASA
Step-by-step explanation:
They give us one pair of angles and one pair of congruent sides for it to be ASA we need an additional angle but on the other side from where the last angle was. By vertical angles proof we can see that the angles at the intersection will be congruent so you have one angle then a side then another angle
Hope This Helps :)